#include <iostream>
#include <iomanip>
#include <fstream>
#include <cstdlib>
#include <ctime>
#include <algorithm>
#include <numeric>
#include <vector>
#include <iterator>
#include <functional>
#include <boost/bind.hpp>
#include <boost/timer.hpp>
#include <boost/shared_ptr.hpp>

using namespace std;

int main(int argc, char **argv)
{
	int i=0;
label:
	cout<<++i<<" ";
	if(i<1000)
		goto label;
	cout<<endl;

	return 0;
}
